Bolt



D. BOOTH* March 19, 1929.

BOLT

Filed May 27, 1926 glu/undo@ @A V/ 500 TH arto z um! Patented Mar. 19, 1929i.

PATENT OFFICE.

DAVID BOOTH, OF BALTIMORE, MARYLAND.

BOLT.

Appneation mea May 27, 1926. seran No. 112,090.

This invention appertains broadly to new and useful improvements in latching devices and has more specific reference to a novel and simplified bolt for securing the doors of garages and like structures in closed position.

An important object of the present invention is to provide such an improved bolt of the character stated having associated therewith yieldable means for normally urging the same into latcliing position.

Another object of the present invention is to provide such a bolt of the character stated having incorporated therewith'means for retainingthe same in its latching position independently of the yieldable means whereby to Vrelease the weight of the bolt from the said yieldable means.

Another object of the present'invention is the provision of means whereby the bolt may be withdrawn from its latching position,jtogether with means for retaining the said bolt in its inoperative position against the action of the said yieldable means.

Another object of to provide such a bolt embodying generally a base plate, alined bearing members carried bythe base plateand provided with cam faces, anda bolt slidably mounted within the bearings and having means adapted to ride upon the saidA cam faces as the bolt is moved from its latching position into its inoperative position and vice-versa. A further object of the present invention is to provide an improved bolt of the above character' which will be durable and efficient in use, one that will be simple and easy to manufacture and one which can be placed upon the market' at a small cost.'

Numerous other objects and advantages of the present invention will become more readily apparent during the course of the following description when taken. in connection Vwith' the accompanying drawings.

In'the drawings forming a part of this application and wherein like characters of reference denote corresponding parts throughout the several views: Y

Figure 1 is a view of a portion of a garage or like structure showing associated therewith an improved securing bolt constructed in accordance with the present invention.

the present invention is Y Figure 2 is a sectional view through a portion of the garage or like structure showing the bolt in a position at right angles to Figure 1.

Figure 3 is a detail view of the bolt looking at the rear thereof.

Figure d is a vertical central sectional view through the bolt.

igure 5 is a transverse sectional view taken on line of Figure 2. Y

Figure 6 is a. transverse sectional View take-n on line G-6 of Figure et.

Figure 7 is a perspective view of the keeper plate.

Figure 8 is an enlarged detail view showing the formation of one of the notches.

Referring now more particularly to the accompanying drawings, the numeral 10 generally designates the front wall of a garage or other like structure and 11 the door thereof to the frame 12 of which is adapted to be secured the present improved bolt generally indicated by the numeral 13.

The bolt 13 embodies in its construction a substantially rectangular iat base plate let provided at its four corners with apertures 15 thro-ugh which may be inserted suitable screws or other fastening elements 16 when securing the device to the door frame 12 of the garage or like structure 10.

Carried by the base plate 14 and arranged longitudinally thereof is the somewhat narrower depending guide plate 17 which eX- tends substantially the entire length of the said base plate 14 and is secured thereto intermediate its vertical side edges through the medium of one or more rivets 18, the lower end of the said guide plate 17 being directed at substantiall f right angles to the body thereof to provide the guide terminal 19. It will be appreciated that means other than rivets may be employed for securing the guide plate 17 to the base plate 14 and therefore, I do not wish to be limited to the particular securing means disclosed.

Also carried by the base plate 1a are the vertically alined guide members 2() and 21 within which is slidabl7 mounted the bolt 22, said bolt having secured to the lower end thereof the depending operating rod 23 which pan-:es Vthrough an aperture in the guide terminal 19 of the plate 17 and has its A17 and the other end secured to the bolt 22 serves to normally urgeV the bolt upwardly into its latching position. y

t will be readily understood that there are various ways in which the rod 23 may be secured to or within tl e bolt 22 and l donot,therefore, Wish to be limited to any particular' manner of securing these elements together. However, l prefer to secure the rod 23 within the belt 22 by means of soldering, welding or through the process .of

sweating thereby eliminating` the necessity;

of forming threads on the bolt.

The guide members 2O and 21 are of substantially U-shaped formation and have their opposite ends extended through the base plate 14 and flattened as at 26 and 27 whereby to secure the same to the said base plate. It will be seen that the guide members 2O and 21 overlie the guide plate 17 and that the opposite ends of the said guide members pass through the base plate immediately adjacent the vertical edges of the said guide plate.

The bottom edge of the guide member 2O is provided with an upv-Jardly curved cam face 2 8 terminating in a notch 29, the provision of which results in the formationv of the inwardly extending` bolt retaining lug 30. The upper edge .of the lower guide member 21 isalso formed with a cam face 31 but this camy face curves downwardly and in an opposite direction from the cam face 28, said cam facer31 terminating in a notch 32, the provision of which results in the formation of the lower bolt retaining lug 33, the notches 29 and 32 and the boltretaining lugs and being positioned at the rod and within Y opposite sides of the base plate 14 as willY be readily understood.

Carried by the bolt 22 approximately termediate the ends thereof is the laterally extending lockingpin 34 adapted to ride upon the cam faces 23 and 31 and to 'tit within the notches 29 and 32 in the guide membersv 2O and 21 when the bolt 22 is moved into its locking position or into its inoperative position as will be more clearly hereinafter set forth.

In Figure 7 of the drawings has been dis'- closed the keeper plate employed in association with the present improved bolt, said keeper plate comprising in its construction the base portion 35 formed with the bolt receiving opening. 33 and the upstanding forwardend 36. The keeper plate is adapted to be counter-sunk into the front wall of the garage or likelstructure directly above the door frame 12 as shown in Figures 1 and 2 and the same is secured in position by means of suitable fastening elements adapted to be inserted through the openings 37 in the base portion 35. v

Before the bolt is attached to the garage or like structure, the top of the door frame 12 thereof is cut out to form a vertical opening 'or bore v39 and the front wall 10 of the structure directly above the door frame is formed with a recess 40 in alinement with the bere 39.z The keeper plate shown in Figure 7 is then secured to the bottom edge of that portion of the front wall 10 of the structure: forming the vtop of the doorway in the manner set forth above so that the opening 38 therein will aline with the bore 39 and recess 40. n

The improved bolt 13 is Vthen associated with the garage or like structure by securing the base plate 14 thereof to the inner sideI edge of the door frame 12 so that the bolt 22` will be in alinement with and will be permitted to passupwardly through the bore 39 in the door frame and opening 38 in the keeper plate into the recess 40inthe front wall of the structure. Y*

When it is desired to unfasten the door 11, the operator simply grasps they hand grip 24 on the lower end of the operating rod 23 and turns the same slightly to the left, thereby also turning thebolt 22 whereby (to move lthe locking pin 34 outof the'noteh 30v inthe guide member 20, the locking pin 34 riding on the cam face 28 as the `said bolt is being thus turned. When the bolt has been turned sufficiently, to move the locking pin 34 Yout of the notch 29, itis then pulled downwardly against the action of the spring 25 and 'as the VlockingV pin 34 engages with the cam face 31 of the guide member 32,'the bolt is again turned to the left so that the, sa'idlatching pin will ride downwardly on the vsaid vcam face I31Kinto the'not'ch 32,V ysaid bolt being effectively held in its inoperative/position through the medium of the latching ,pin 34V engaging with theretaining lug 33. vAttention isV directed to' Figure S'which yshows more clearly the exact formation of the notch 32 and itV will be seen that Ithe.'bott-om edge ofthe lug 33 is curvedupwardly to form a recess 32 within which is received the latching pin 34. Thus, it will be appreciated that when the latchingv pin Visreceived within this recess, all danger of the saine accidentally slipping out of the notch 32 is obviated.

When bit is desired to secure or fasten the door 11,(the same is position after whichv the v operator simply turn-s the bolt 22 to the ,right so as to disengage the latching pin 34 from ther retaining lug 33 and when the latching pinis so released, the action 25 will immediately force the Vbolt upwardly through the bore 39 in the door' frame, openfirst 'moved to its closed y of the expansion spring 5;`

ing 38 in the keeper plate into the recess 40 in the front wall of th ture. As the latching the cam face 28 of 40 and the latching pin 34 is received within the notch 29 of the guide member' 20, the door ll will be effectively and firmly secured in its closed position.

The bolt retaining lug 30 of the guide member 20 not only serves to release the Weight of the bolt 22 from the expansion spring 25 but also serves to prevent the said bolt from moving downwardly out of the recess 40 should the spring 25 be not suiiiciently strong to retain the said bolt in its latching position.

It is believed that from the foregoing, the construction and operation of the present will be appreciated that while there has been disclosed a preferred embodiment of the invention, various changes in the details of construction may be found desirable and the right is hereby reserved to make any such changes as properly fall within the scope of the appended claim without departing from or sacrificing the spirit of the invention.

hat is claimed is:

A sliding bolt structure of the character set forth comprising a mounting plate, a pair of longitudinally spaced substantially U- shaped guide members having the legs thereof secured in said plate, said members having the opposed edges each provided with an esigned to selectively engage in said slots to position, a guide arm ext-ending longitudinally of the face of said plate between the and projecting beyond adjacentend of the bolt to maintain the bolt in set position.

In testimony whereof I aiX my signature.

DAVID BOOTH. 

